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7. ZnS has an FCC lattice with S2- in lattice positions. a. Calculate the number of...
2. Sic has an fce lattice with si in lattice positions. Given radii of si 0.04nm...
2. Sic has an fce lattice with si in lattice positions. Given radii of si 0.04nm and C 0.016nm, calculate the following: (a) What is the coordination number for Si? (b) Calculate the lattice parameter for the unit cell (c) Calculate the density of SiC (d) Which direction will have the highest linear density of atoms: [100]. [110] or [111]? (e) Why is this material brittle?
Silver has an FCC crystal structure. The lattice parameter a of Ag is 0.4084nm. Calculate the...
Silver has an FCC crystal structure. The lattice parameter a of Ag is 0.4084nm. Calculate the planar concentration (number of atoms per m2) in the planes (100), (110) and (111). Which plane has highest concentration?
3.- The Perovskite structure (CaTiOs) can be described as an FCC packing of Ca2* and O2 ions on which Ti4+ occupies of the octahedral sites, located in the cube center. Data, ionic radii, r(Ca2+)-0.1...
3.- The Perovskite structure (CaTiOs) can be described as an FCC packing of Ca2* and O2 ions on which Ti4+ occupies of the octahedral sites, located in the cube center. Data, ionic radii, r(Ca2+)-0.106 nm; r(0%)-0.132 nm; r(Ti4+)-0.036 nm; atomic mass, M(Ca)-40.08; M(O)-16.00; M(Ti)-47.90. Calculate: a) The volume of the unit cell b) The packing factor c) The linear density (ions/nm) in the direction [111] d) The planar density (ions/nm2) in the planes (111) and (200) e) The volumetric density...
Calculate (a) LD for FCC Al and (b) for BCC Cr Problem 4 on Linear density...
Calculate (a) LD for FCC Al
and (b) for BCC Cr
Problem 4 on Linear density of atoms (LD) LD along a certain direction vector of a crystal is defined as LDZ= number of atoms centered along the x direction vector length of the x direction vector For example, along 100 direction of a cubic crystal Linear density is defined as LD 100 = 1 number of atoms centered on [100] direction vector length of [100] direction vector Similarly LD...
Solid silver adopts the fcc structure. (i) Determine the number of Ag atoms per fundamental unit cell (nuc;) determine the volume of the fundamental unit cell (Vuc in nm3); (ii) determine the radius...
Solid silver adopts the fcc structure. (i) Determine the number of Ag atoms per fundamental unit cell (nuc;) determine the volume of the fundamental unit cell (Vuc in nm3); (ii) determine the radius of a single Ag atom (in nm); (iv) the volume (space) within the fundamental unit cell occupied by these Ag atoms (Vs in nm3); (v) calculate its packing fraction; (vi) calculate the mass of a fundamental unit cell muc in g); and (vii) the density (in g...
1)(5 points) Walter White who lives in Side-centered cubic (scc) cell Simeranya (a utopic city in...
1)(5 points) Walter White who lives in Side-centered cubic (scc) cell Simeranya (a utopic city in Anarres) Top view prepares blue crysta ls, named as myth, which adopt a side-centered cubic (scc) cell, where atoms occupy the center of sides of a cubic cell. (The myth molecule is assumed to have a perfect spherical shape.) a) Find out how many atoms are present in each unit cell. Calculate the atomic packing factor (APF) of scc unit cell. c) b) Given...
Side-centered cubic (scc) cell Top view 1) (5 points) Walter White who lives in Simeranya (a...
Side-centered cubic (scc) cell Top view 1) (5 points) Walter White who lives in Simeranya (a utopic city in Anarres) prepares blue crystals, named as myth, which adopt a side-centered cubic (scc) cell, where atoms occupy the center of sides of a cubic cell. (The myth molecule is assumed to have a perfect spherical shape.) a) Find out how many atoms are present in each unit cell. b) Calculate the atomic packing factor (APF) of scc unit cell. c) Given...
EENG 245 Physical electronics HW 1 1) The NaCl crystal is cubic, and can be described...
EENG 245 Physical electronics HW 1 1) The NaCl crystal is cubic, and can be described as follows. Na atoms sit at the corners and faces of a cube, and Cl atoms sit in between two Na atoms. This means that a Clatom is found half-way along each of the cube edges, and there is a Cl in the center of the cube. (We could also have described the lattice by interchanging Na and Cl in the description above.) Another...
Side-centered cubic (scc) cell Top view 1) (5 points) Walter White who lives in Simeranya (a...
Side-centered cubic (scc) cell Top view 1) (5 points) Walter White who lives in Simeranya (a utopic city in Anarres) prepares blue crystals, named as myth, which adopt a side-centered cubic (scc) cell, where atoms occupy the center of sides of a cubic cell. (The myth molecule is assumed to have a perfect spherical shape.) a) Find out how many atoms are present in each unit cell. b) Calculate the atomic packing factor (APF) of scc unit cell. c) Given...
2. Sic has an fce lattice with si in lattice positions. Given radii of si 0.04nm and C 0.016nm, calculate the following: (a) What is the coordination number for Si? (b) Calculate the lattice parameter for the unit cell (c) Calculate the density of SiC (d) Which direction will have the highest linear density of atoms: [100]. [110] or [111]? (e) Why is this material brittle?
Silver has an FCC crystal structure. The lattice parameter a of Ag is 0.4084nm. Calculate the planar concentration (number of atoms per m2) in the planes (100), (110) and (111). Which plane has highest concentration?
3.- The Perovskite structure (CaTiOs) can be described as an FCC packing of Ca2* and O2 ions on which Ti4+ occupies of the octahedral sites, located in the cube center. Data, ionic radii, r(Ca2+)-0.106 nm; r(0%)-0.132 nm; r(Ti4+)-0.036 nm; atomic mass, M(Ca)-40.08; M(O)-16.00; M(Ti)-47.90. Calculate: a) The volume of the unit cell b) The packing factor c) The linear density (ions/nm) in the direction [111] d) The planar density (ions/nm2) in the planes (111) and (200) e) The volumetric density...
Calculate (a) LD for FCC Al
and (b) for BCC Cr
Problem 4 on Linear density of atoms (LD) LD along a certain direction vector of a crystal is defined as LDZ= number of atoms centered along the x direction vector length of the x direction vector For example, along 100 direction of a cubic crystal Linear density is defined as LD 100 = 1 number of atoms centered on [100] direction vector length of [100] direction vector Similarly LD...
Solid silver adopts the fcc structure. (i) Determine the number of Ag atoms per fundamental unit cell (nuc;) determine the volume of the fundamental unit cell (Vuc in nm3); (ii) determine the radius of a single Ag atom (in nm); (iv) the volume (space) within the fundamental unit cell occupied by these Ag atoms (Vs in nm3); (v) calculate its packing fraction; (vi) calculate the mass of a fundamental unit cell muc in g); and (vii) the density (in g...
1)(5 points) Walter White who lives in Side-centered cubic (scc) cell Simeranya (a utopic city in Anarres) Top view prepares blue crysta ls, named as myth, which adopt a side-centered cubic (scc) cell, where atoms occupy the center of sides of a cubic cell. (The myth molecule is assumed to have a perfect spherical shape.) a) Find out how many atoms are present in each unit cell. Calculate the atomic packing factor (APF) of scc unit cell. c) b) Given...
Side-centered cubic (scc) cell Top view 1) (5 points) Walter White who lives in Simeranya (a utopic city in Anarres) prepares blue crystals, named as myth, which adopt a side-centered cubic (scc) cell, where atoms occupy the center of sides of a cubic cell. (The myth molecule is assumed to have a perfect spherical shape.) a) Find out how many atoms are present in each unit cell. b) Calculate the atomic packing factor (APF) of scc unit cell. c) Given...
EENG 245 Physical electronics HW 1 1) The NaCl crystal is cubic, and can be described as follows. Na atoms sit at the corners and faces of a cube, and Cl atoms sit in between two Na atoms. This means that a Clatom is found half-way along each of the cube edges, and there is a Cl in the center of the cube. (We could also have described the lattice by interchanging Na and Cl in the description above.) Another...
Side-centered cubic (scc) cell Top view 1) (5 points) Walter White who lives in Simeranya (a utopic city in Anarres) prepares blue crystals, named as myth, which adopt a side-centered cubic (scc) cell, where atoms occupy the center of sides of a cubic cell. (The myth molecule is assumed to have a perfect spherical shape.) a) Find out how many atoms are present in each unit cell. b) Calculate the atomic packing factor (APF) of scc unit cell. c) Given...
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